Retailer photo of ASUS PRIME B550M-A WIFI II (Micro ATX). View this offer in Where to buy
ASUS · MOBO · AM4
ASUS PRIME B550M-A WIFI II
Trade-offs: Current price sits $36 above the strong-value threshold (~$83)
- Socket
- AM4
- Chipset
- AMD B550
- Form factor
- Micro ATX
- Memory
- DDR4 · 4 slots
- M.2 slots
- 2
Move a slider and the page re-scores this product against the same market frame.
Is this a good buy today?
Market confidence: LowAt $119 the ASUS PRIME B550M-A WIFI II is priced in line with its $119 representative market level. Only one retailer currently backs that price, so the level is a single data point rather than a market.
Limited market: only one retailer currently has a verified offer, so treat this price as a single data point.
Prices & availability
Where to buy the ASUS PRIME B550M-A WIFI II
Compare the offers we track for this model, across variants and retailers.
1 tracked offers · 1 retailers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| ASUS PRIME B550M-A WIFI II (Micro ATX) | Newegg | New | $119 | 62 | 2026-09-27 | View offer → |
| ASUS PRIME B550M-A WIFI IIMultiple variants available | Amazon Affiliate | Varies | Find on Amazon | Not tracked | No price snapshot | Find on Amazon → |
Prices are dated snapshots, not live quotes — confirm the final price at the store. New, refurbished and used offers are listed separately; used offers carry warranty and seller risk.
Where it stands in the field
Two different questions, side by side. Performance compares what the hardware can do; Value compares what that capability costs at today’s price. A product can rank high on one and low on the other — that gap is the point.
Performance Balanced
How much it can do. Price plays no part in this ranking.
#424 of 796 graded motherboards
- #421 ASRockASRock B550M-ITX 62
- #422 ASUSASUS PRIME B550M-A 62
- #423 ASUSASUS PRIME B550M-A AC 62
- #424 ASUSASUS PRIME B550M-A WIFI II 62
- #425 ASUSASUS PRIME B550M-K 62
- #426 ASUSASUS PRIME B550M-K ARGB 62
- #427 ASUSASUS ROG STRIX B550-E GAMING 62
Value Balanced
How much of that you get for today’s price.
#99 of 835 currently priced motherboards
- #96 ASUSASUS ROG STRIX Z690-E GAMING WIFI 63
- #97 MSIMSI MAG B850M MORTAR WIFI 62
- #98 ASUSASUS PRIME Z790M-PLUS 62
- #99 ASUSASUS PRIME B550M-A WIFI II 62
- #100 GigabyteGigabyte X870 AORUS STEALTH 62
- #101 MSIMSI MPG Z890 CARBON WIFI 62
- #102 ASRockASRock X870 Taichi Creator 62
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#515 of 784 graded motherboards
- #512 MSIMSI B760 GAMING PLUS WIFI 73
- #513 ASUSASUS PRIME B550M-A 72
- #514 ASUSASUS PRIME B550M-A AC 72
- #515 ASUSASUS PRIME B550M-A WIFI II 72
- #516 ASRockASRock H810M-X 72
- #517 ASUSASUS Z170-A 72
- #518 ASUSASUS MAXIMUS IX HERO 72
Value Gaming Build
How much of that you get for today’s price.
#219 of 834 currently priced motherboards
- #216 GigabyteGigabyte Z690 GAMING X 42
- #217 ASUSASUS ROG STRIX Z590-E GAMING WIFI 42
- #218 MSIMSI PRO B860-P WIFI 42
- #219 ASUSASUS PRIME B550M-A WIFI II 42
- #220 ASUSASUS PRIME B850M-A 41
- #221 ASRockASRock B850M-X 41
- #222 ASUSASUS PRIME B840M-A WIFI 41
Performance Workstation
How much it can do. Price plays no part in this ranking.
#569 of 776 graded motherboards
- #566 ASUSASUS TUF GAMING B460M-PLUS 43
- #567 ASUSASUS PRIME B550M-A 42
- #568 ASUSASUS PRIME B550M-A AC 42
- #569 ASUSASUS PRIME B550M-A WIFI II 42
- #570 GigabyteGigabyte B550M K 42
- #571 MSIMSI B850MPOWER 42
- #572 ASUSASUS TUF B360-PLUS GAMING 42
Value Workstation
How much of that you get for today’s price.
#319 of 809 currently priced motherboards
- #316 ASUSASUS ROG STRIX Z490-A GAMING 22
- #317 ASRockAsRock X870E Challenger WIFI White 21
- #318 ASUSASUS TUF GAMING B850-BTF WIFI W 21
- #319 ASUSASUS PRIME B550M-A WIFI II 21
- #320 ASUSASUS ROG STRIX Z490-F GAMING 21
- #321 MSIMSI Z490-A PRO 21
- #322 GigabyteGigabyte Z490 AORUS ELITE 21
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#157 of 796 graded motherboards
- #154 ASRockASRock H810M-X 71
- #155 ASUSASUS PRIME B550M-A 70
- #156 ASUSASUS PRIME B550M-A AC 70
- #157 ASUSASUS PRIME B550M-A WIFI II 70
- #158 MSIMSI B550M PRO-VDH 70
- #159 MSIMSI B550M PRO-VDH WIFI 70
- #160 MSIMSI MAG B550M BAZOOKA 70
Value Small-Case Fit
How much of that you get for today’s price.
#40 of 835 currently priced motherboards
- #37 ASUSASUS b650m-ayw-wifi 67
- #38 GigabyteGigabyte B860M EAGLE PLUS WIFI6E 66
- #39 ASUSASUS PRIME Z790M-PLUS 65
- #40 ASUSASUS PRIME B550M-A WIFI II 65
- #41 GigabyteGigabyte B650M D3HP 64
- #42 GigabyteGigabyte Z890M GAMING X 64
- #43 ASUSASUS B850M-AYW-GAMING-WIFI 63
These ladders follow the preset scenario shown above. Your own weights re-score this product, not the whole field.
What it is good for
| Scenario | this productCapability grade · Value at current price | Higher capability | Higher Value with current priorities |
|---|---|---|---|
| Balanced (all-round)Weighted all-round view | GradeNo grade Value62 | Higher capability MSI MEG X870E UNIFY-X MAX 18 +61% capability · -18% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF 93 +25% capability · +4% price |
| Gaming BuildScenario capability | GradeC Value42 | Higher capability MSI PRO B650M-B A 30 +25% capability · +7% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF B 74 +17% capability · +4% price |
| WorkstationScenario capability | GradeD Value21 | Higher capability ASRock B650 Pro RS WiFi B 59 +102% capability · +18% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF C 49 +55% capability · +4% price |
| Small-Case FitScenario capability | GradeC Value65 | Higher capability ASRock A620AI WiFi S 74 +35% capability · +10% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF C 99 +7% capability · +4% price |
Balanced has no letter: it is a weighting preset, not a capability rubric. A grade answers “how well does this handle that job?” — price is never part of it. Relative Value puts the current market price back in.
Trade-offs
Works well if
- Gaming Build is your main prioritygraded C for Gaming Build on the same rubric as the tier list
- Strong-value threshold: ~$83$83 is where Relative Value reaches 80 with Balanced priorities, in the 2026-09-26–2026-09-27 offer frame
Consider other options if
- Current price sits $36 above the strong-value threshold (~$83)cheapest tracked $119 against a $83 calculated threshold with Balanced priorities
- Workstation is what you actually need it forit grades only D there
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Consider other options if
- Gaming Build is what you actually need it forit grades C there; MSI PRO B650M-B grades A at $127
- You want strong value for Gaming Build specificallycompeting products deliver so much more for Gaming Build per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- You are buying for Gaming Build and want no asterisksthe rubric caps this grade: previous-generation socket — limited cpu upgrade path
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Works well if
- Workstation is not actually your main job — Gaming Build isit grades D for Workstation, but C for Gaming Build
Consider other options if
- Workstation is what you actually need it forit grades D there; ASRock B650 Pro RS WiFi grades B at $140
- You want strong value for Workstation specificallycompeting products deliver so much more for Workstation per dollar that no price this model realistically trades at reaches the strong-value mark for this job
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Works well if
- Small-Case Fit is not actually your main job — Gaming Build isit grades C for Small-Case Fit, but C for Gaming Build
Consider other options if
- Small-Case Fit is what you actually need it forit grades C there; ASRock A620AI WiFi grades S at $131
- You want strong value for Small-Case Fit specificallyat today's market no realistic price for this model reaches strong value for Small-Case Fit — the calculation only gets there near $70, against a cheapest tracked $119
- You are buying for Small-Case Fit and want no asterisksthe rubric caps this grade: micro atx — fits compact mid-size cases
Every line states the fact it was derived from, for the scenario selected above. Thresholds are calculated points on our value curve — information about where the maths turns, not instructions about what to pay.
Similar options to the ASUS PRIME B550M-A WIFI II
Chosen for Balanced
Chosen for Gaming Build
Chosen for Workstation
Chosen for Small-Case Fit
Alternatives stay near this product’s price range. Step-up options may exceed the standard budget envelope when the capability gain is meaningful.
Upgrade planner
Judge the change in the active scenario, then make the cash gap explicit.
Using page scenarioWhat are you upgrading from? These are the axes we compare on, and where this product stands in the current market.
Capability differences are expressed as tiers and index points, not as benchmark percentages we did not measure.
Specifications & compatibility
What this product is, and what to check before it goes into your build.
Memory
- Type
- DDR4
- Slots
- 4
- Maximum
- 128 GB
- ECC support
- No
Power / Interface
- Socket
- AM4
- Chipset
- AMD B550
- Form factor
- Micro ATX
Physical / Outputs
- M.2 slots
- 2
- SATA ports
- 4
- PCIe ×16 slots
- 1
- USB ports
- 3
- Wi-Fi
- Wifi 6 Bluetooth 5.2
- Ethernet
- 1 Gb/s
Show all specifications
Features
- Fan headers
- 4
- RAID
- Yes
- ARGB headers
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- 90MB19X0M0EAY0
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-09-26–2026-09-27
What to check in your build
AM4
Takes AM4 processors — a matching socket is necessary but not sufficient, check the vendor's CPU support list
Micro ATX
Micro ATX — the case must accept this size
DDR4 · 4 slots · up to 128 GB
Takes DDR4 memory only — another DDR generation does not fit the slots
Found an error? Report this specification Email the field, corrected value and an optional source.
Compatibility guidance is practical help, not a score. Missing data is shown as unknown, never invented.
Summary
ASUS PRIME B550M-A WIFI II offers a balanced view across an all-round mix of priorities. It ranks #424 by capability in the current modelled field. Its clearest measured strength is feature score 58. MSI B550M PRO-VDH WIFI currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B550M-A WIFI II offers C-grade capability for Gaming Build. It ranks #515 by capability in the current modelled field. Its clearest measured strength is feature score 58. The C grade is the decisive limitation for this workload.
ASUS PRIME B550M-A WIFI II offers D-grade capability for Workstation. It ranks #569 by capability in the current modelled field. Its clearest measured strength is feature score 58. The D grade is the decisive limitation for this workload.
ASUS PRIME B550M-A WIFI II offers C-grade capability for Small-Case Fit. It ranks #157 by capability in the current modelled field. Its clearest measured strength is feature score 58. The C grade is the decisive limitation for this workload.
FAQ
Why does Relative Value change when I choose another scenario?
Each scenario changes the weights applied to capability, price and the other published factors. The hardware facts stay fixed, but the value question changes, so its score and rank can change too.
Why can Amazon appear without a tracked price?
Amazon is shown as a discovery link when we do not have a permitted verified price snapshot. It is excluded from price comparisons, rankings and Relative Value until a compliant tracked price exists.
Useful links & sources
offer frame 2026-09-26–2026-09-27 · formula mobo-value-v1.4 · facts facts-2026-09-27 · Relative Value is an estimate from our current dataset, the selected weights and dated market prices — not an official product rating and not a price forecast. Target prices are calculation thresholds, not predictions. Methodology We are not a shop. Affiliate links may earn us a commission; they never change the calculations or the ranking.